Welcome to Better Know An Umpire, an effort to educate ourselves on the human elements who have ultimate decision-making power over some 2,500 Major League Baseball games a year. (All cumulative statistics are through the 2011 season, unless otherwise stated.)

Claim to fame: Made his first career ejection on April 16, tossing White Sox pitching coach Don Cooper for arguing balls and strikes. His second ejection came this past week, so maybe he's getting more comfortable.